HP/PRE : For select the unit output from headphone sockets or the XLR /
Selector : For select the unit input channels.
(The input 4 had both
BNC and RCA sockets, but at the same time only can connect either )
Volume: For change the volume of the unit.
DAC/PRE button: For select the unit as DAC output With volume
control or Fixed level , without volume control output from
the XLR / RCA sockets on rear .
The display auto dark : Push
into the jumper is auto dark .Please operate the jumper while the unit
power off .
Digital filter setting¡G
SET ¡G Push into the jumper is NOS,
pull off is Oversampling .
Available of PCM signal input from USB or I2S
.Please operate while the unit power off .
IIR0 ÉOIIR1¡GAvailable for DSD input .
50K Pull off
60K Pull off
70K Push into
FIR ¡G Push into for setting Slow
roll off , pull off for setting Fast roll off . Please operate
while the unit power off .
DSD / PCM support from I2S input
The DSD/PCM support not only from the USB input, but the I2S input.
The NFB-27 can detect the I2S input signal, if input DSD signal, it will
auto to remove the DSD pop noise while select the DSD track . (Had test
working well with Amanero and Xmos U8 ) .